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oksano4ka [1.4K]
3 years ago
8

Plss help with this problem!!​

Mathematics
1 answer:
Brrunno [24]3 years ago
7 0

Answer:

52.1

Step-by-step explanation:

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Expand 4(-2y + 3). 2 y + 7 -8 y + 12 2 y + 12 -8 y + 3
mrs_skeptik [129]

Answer: -8y+12

Step-by-step explanation: Multiply using the distributive property.

Hope this helps.

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3 years ago
Find the slope of the line on the graph. Write your answer as a fraction or a whole number, not a mixed number or decimal.
borishaifa [10]
The answer is \frac{-3}{4}
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Which is the result when the equation y = -2/5x + 5/2 is converted to<br> standard form?
mixer [17]

Answer:

 4x+10y-25=0

Step-by-step explanation:

y=-\frac{2}{5} x+\frac{5}{2}

Multiply by 10 on both sides,

10y=-4x+25\\

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2 years ago
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What is the area of the trapezoid to the nearest tenth? <br> PICTURE BELOW ⬇⬇⬇⬇
Nastasia [14]

Answer:

  62.4 ft²

Step-by-step explanation:

The unmarked horizontal dimension at the bottom of the triangle is ...

  (8 ft)sin(30°) = 4 ft

The unmarked vertical dimension of the triangle (the height of the trapezoid) is ...

  (8 ft)cos(30°) ≈ 6.93 ft

Then the area of the trapezoid is given by the formula ...

  A = (1/2)(b1 +b2)h

  A = (1/2)((4 ft+7 ft) +(7 ft))(6.93 ft) ≈ 62.4 ft²

_____

The mnemonic SOH CAH TOA can remind you of the relationships between right triangle dimensions and angles.

  Sin = Opposite/Hypotenuse   ⇒   Hypotenuse×Sin = Opposite

  Cos = Adjacent/Hypotenuse   ⇒   Hypotenuse×Cos = Adjacent

6 0
3 years ago
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3 years ago
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